Comparison

Peptide AI vs LychnoFit

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Peptide AI

Log peptide and GLP-1 doses with an AI coach that analyzes your data. Track vial levels, rotate injection sites, and monitor side effects. Connect wearables for comprehensive health insights.

Highlights
  • AI coach for data analysis
  • Two-tap dose logging
  • Injection site rotation map
  • Vial and pen level tracking
  • Integration with wearables
  • Community rooms and leaderboards
  • PDF export of health data
Features
Read full description

Peptide AI is a peptide and GLP-1 tracker with an AI coach that reads your own logs. Log every dose in two taps, get reminded when it's due, and rotate injection sites on a 20-site body map, front and back. Track what's left in each vial, pen or pill bottle and get a nudge before you run low. Built for real protocols: GLP-1s like retatrutide, tirzepatide and semaglutide, plus BPC-157, TB-500, GHK-Cu, CJC-1295, Ipamorelin and 55+ more compounds and blends. REMI, YOUR COACH — Ask about your own data and get answers backed by cited research. Remi reads your meals next to your doses, suggests short experiments and tells you whether they worked. TRACK — Daily check-ins, side effects after each dose, weight in lb or kg, goals and trends. Connect Apple Health, Oura, WHOOP, Garmin or Fitbit for sleep, HRV and recovery. COMMUNITY — Rooms for the compounds people run, and a weekly leaderboard with friends. EXPORT — A PDF of your dose history and health metrics to bring to your clinician. WIDGETS & WATCH — Log your next dose from a Home Screen or Lock Screen widget, or from Apple Watch. Logging doses and tracking your protocol are free. Remi, wearable sync, PDF export and some Track insights need a subscription. Peptide AI is for tracking and education only. It doesn't give medical advice or tell you how much to take: your dose comes from your clinician. Consult a licensed clinician before starting or changing any protocol. Terms of Use: https://peptideai.co/terms Privacy Policy: https://peptideai.co/privacy

About

LychnoFit

Features
Read full description

LychnoFit is an AI-powered personal fitness and bodybuilding app. • AI COACH: Get instant, personalized recommendations on workouts, nutrition, and fitness. • BODY ANALYSIS FROM A PHOTO: Upload a photo, let AI analyze your body composition, and view a realistic 3-month progress projection. • WORKOUT TRACKING: Create your weekly program, log your sets and reps, and view your workout history. • PROGRAM SCANNING: Take a photo of your workout program, and the app will automatically identify the exercises. • PROGRESS GRAPHS: Track your measurements and progress with visual graphs. • SOCIAL: Share your progress, follow others, and stay motivated. • REMINDERS: Stay on track with workout, hydration, and supplement reminders. Unlock unlimited AI analysis and coach chat with a LychnoFit Pro subscription. Terms of Use (EULA):https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Peptide AI4 screens
LychnoFit4 screens

Verdict

The call

The clearest difference is ads: Peptide AI at none against LychnoFit's shown. LychnoFit's advantage is iOS requirement (15.1 vs 18.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Peptide AI sells 4 in-app purchases, starting at $6.99 per 7 days and LychnoFit sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Peptide AI ships an update weekly, LychnoFit every 5 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Peptide AI versus LychnoFit: the parameters behind the verdict, then further details
ParameterPeptide AILychnoFit
PriceFreeFree
Rating4.5 (75 ratings) — better—
Positive reviews76.5% of reviews—
Number of ratings75 — better—
Update frequencyWeeklyEvery 5 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS18.015.1 — better
Further details — not scored
Size74 MB52 MB
Age rating17+4+
DeveloperPeptide AIHasan ergunt

In-app purchases

4 purchases

Peptide AI

Subscriptions4
  • Premium Weekly$6.997 Days
  • Premium Monthly7 Days trial$14.991 Month
  • Premium Yearly Offer7 Days trial$29.991 Year
Show 1 more
  • Premium Yearly7 Days trial$59.991 Year
3 purchases

LychnoFit

Subscriptions3
  • Monthly$0.991 Month
  • Quarterly$2.993 Months
  • Yearly$6.991 Year

Questions

Is Peptide AI free?
Peptide AI is free to download, with in-app purchases available.
Is LychnoFit free?
LychnoFit is free to download, with in-app purchases available.
Do Peptide AI or LychnoFit have ads?
LychnoFit shows ads; Peptide AI does not.
Which is updated more often, Peptide AI or LychnoFit?
Peptide AI ships an update weekly, and LychnoFit every 5 days. Most recently, Peptide AI was updated on November 9, 2026 and LychnoFit on October 31, 2026.

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